Module end plate

Abstract

The utility model provides a module end plate. The module end plate comprises an end plate main plate, an end plate slave plate, an elastic pushing mechanism and a tightening mechanism, the end plate main plate and the end plate slave plate are buckled together and can slide relatively in the buckling direction of the end plate main plate and the end plate slave plate. The elastic pushing mechanism is located between the end plate main plate and the end plate slave plate, the elastic pushing mechanism and the lacing mechanism are arranged on the end plate main plate or the end plate slave plate together, and the lacing mechanism can be in a bound state or a released state without binding; in the binding state, the elastic pushing mechanism is bound in the compressed state by the binding mechanism, in the releasing state, the binding of the binding mechanism is released, and the elastic pushing mechanism can form elastic force between the end plate main plate and the end plate slave plate to drive the end plate main plate and the end plate slave plate to be away from each other. The module end plate disclosed by the utility model can reduce gaps when the module end plate is mounted in the battery pack and absorb or offset the deformation quantity of the battery module.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a module end plate. Background Art

[0002] A battery pack usually includes a shell, a module end plate and a battery module formed by stacking multiple battery cells. Module end plates are provided at both ends of the battery module. The battery module and the module end plates are placed in the shell as a whole. The module end plates and the battery pack are fixed inside the shell.

[0003] However, current battery modules are generally cast one-piece structures or extruded one-piece structures. During the assembly of the battery pack, errors are easily caused, resulting in excessive gaps between the battery module and the module end plate or between the module end plate and the shell. In addition, the battery module will expand during use, thereby producing a certain amount of deformation. The deformed battery module will squeeze the module end plate and then squeeze the shell, causing damage to the battery pack. Utility Model Content

[0004] In view of this, the utility model aims to provide a module end plate to reduce the gap in the battery pack when the module end plate is installed and absorb or offset the deformation of the battery module.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A module end plate comprises an end plate main plate, an end plate slave plate, an elastic pushing mechanism and a tightening mechanism;

[0007] The end plate main board and the end plate slave board are buckled together and can slide relative to each other along the buckling direction of the two; the elastic pushing mechanism is located between the end plate main board and the end plate slave board, and is arranged on the end plate main board or the end plate slave board together with the tightening mechanism, and the tightening mechanism can be in a restrained state or a released state of being unrestrained; in the restrained state, the elastic pushing mechanism is restrained in a compressed state by the tightening mechanism, and in the released state, the restraint of the tightening mechanism is released, and the elastic pushing mechanism can form an elastic force between the end plate main board and the end plate slave board to drive the two to move away from each other.

[0008] Furthermore, the elastic pushing mechanisms are multiple and arranged at intervals, and each of the elastic pushing mechanisms can be constrained by the corresponding tightening mechanism to be in the compressed state.

[0009] Furthermore, the plurality of elastic pushing mechanisms are arranged in a plurality of rows at intervals, and each row of the elastic pushing mechanisms shares one tightening mechanism.

[0010] Furthermore, a receiving groove is provided on one of the end plate main plate or the end plate slave plate, and the elastic pushing mechanism is arranged in the receiving groove.

[0011] Furthermore, the end plate main board and the end plate slave board are provided with guide grooves on the other side, and the guide grooves are arranged corresponding to the accommodating grooves, and after the restraint of the tightening mechanism is released, the elastic pushing mechanism can enter the guide grooves.

[0012] Furthermore, the elastic pushing mechanism includes a spring and a pad located at one end of the spring;

[0013] The tightening mechanism compresses the spring through the spacer, and the elastic force of the spring is applied to the end plate main plate or the end plate slave plate through the spacer.

[0014] Furthermore, the tightening mechanism includes a tightening wire; in the restrained state, the tightening wire is pressed against the cushion block, and both ends of the tightening wire are fixed to the end plate main board or the end plate slave board.

[0015] Furthermore, the cushion block is provided with a groove, and the tightening wire is located in the groove.

[0016] Furthermore, it also includes a removable binding belt, and when the elastic pushing mechanism is constrained in the compressed state, the binding belt connects the buckled end plate main board and the end plate slave board together.

[0017] Furthermore, the elastic pushing mechanism and the tightening mechanism are arranged together on the end plate main board, and the end plate main board is provided with a fixing ear for fixing the end plate main board in the battery pack.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] The module end plate described in the utility model has a restrained state and a released state through a tightening mechanism. When the module end plate is installed in the battery pack, the module end plate is in a restrained state, which is convenient for inserting into the gap between the battery module and the shell. After the module end plate is inserted, the restraint can be released and changed to a released state. The end plate is pushed away from the end plate and the end plate main board by an elastic pushing mechanism, so that the module end plate can support the battery module and the shell, and can absorb or offset the deformation of the battery module. At the same time, it can also absorb external mechanical impact to provide certain protection for the battery module.

[0020] In addition, multiple elastic pushing mechanisms arranged at intervals can ensure that sufficient elastic force is provided when released, and have a simple structure, which is convenient for design and implementation. The elastic pushing mechanisms are arranged in multiple rows at intervals and share a tightening mechanism, which is convenient for reducing the process steps during the production of the module end plates and the process steps during their installation, and is convenient for the rapid release of the module end plates after installation, which is convenient for improving work efficiency. A receiving groove is provided on one of the end plate main board or the end plate slave board, which can limit the elastic pushing mechanism and indicate the installation position of the elastic pushing mechanism, which is convenient for processing and production. A guide groove is provided on the other of the end plate main board or the end plate slave board, and through the guide groove, it cooperates with the receiving groove, so that the applied elastic force is in the set direction, ensuring the use effect of the end plate, and can be used as a limiting structure during production and manufacturing, which is convenient for design and implementation.

[0021] In addition, the elastic pushing mechanism includes a spring and a pad, which facilitates the compression of the spring by the tightening mechanism through the pad, and facilitates the elastic force of the spring to be applied to the end plate main board or the end plate slave board when it is released. The tightening mechanism includes a tightening wire, which can ensure the fixing effect of the pad and is easy to break, which is conducive to releasing the restraint. The pad is provided with a groove for the tightening wire to be set, which is conducive to reducing the space occupied by the tightening wire, reasonably allocating space, and facilitating design implementation. The removable restraining belt facilitates the transportation, storage and use of the module end plate, and improves its convenience and practicality. The fixing ears on the end plate main board are conducive to fixing the module end plate in the battery pack, which is easy to install, and the elastic pushing mechanism and the tightening mechanism are both arranged on the main board, which is conducive to ensuring that the release of the elastic force is in the opposite direction of pushing the end plate slave board away from the end plate main board, which is conducive to design implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the structure of the module end plate according to an embodiment of the utility model;

[0024] Figure 2 This is a structural schematic diagram of the end plate mainboard according to an embodiment of the utility model;

[0025] Figure 3 This is a front view of the end plate mainboard according to an embodiment of the utility model;

[0026] Figure 4 This is a structural schematic diagram of the end plate and slave plate according to an embodiment of the utility model;

[0027] Figure 5 This is a structural schematic diagram of the cushion block according to an embodiment of the utility model;

[0028] Description of reference numerals:

[0029] 1. End plate main board; 101. Fixed foot; 102. Fixed ear;

[0030] 2. End plate and slave plate; 3. Elastic push mechanism; 301. Spring; 302. Pad; 303. Groove;

[0031] 4. Tightening mechanism; 5. Receiving groove; 6. Guide groove. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0033] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0035] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0036] The present embodiment relates to a module end plate, which can reduce the gap when the module end plate is installed in a battery pack and absorb or offset the deformation of the battery module.

[0037] In terms of overall structure, Figures 1 to 4 As shown, the module end plate of this embodiment includes an end plate main plate 1, an end plate slave plate 2, an elastic pushing mechanism 3 and a tightening mechanism 4.

[0038] The end plate main board 1 and the end plate slave board 2 are buckled together and can slide relative to each other along the buckling direction of the two. The elastic pushing mechanism 3 is located between the end plate main board 1 and the end plate slave board 2, and is set on the end plate main board 1 or the end plate slave board 2 together with the tightening mechanism 4, and the tightening mechanism 4 can be in a restrained state or a released state of being untied.

[0039] Specifically, in the restrained state, the elastic pushing mechanism 3 is restrained in a compressed state by the tightening mechanism 4, and in the released state, the restraint of the tightening mechanism 4 is released, and the elastic pushing mechanism 3 can form an elastic force between the end plate main plate 1 and the end plate slave plate 2 to drive the two away from each other.

[0040] The module end plate of this embodiment has a restrained state and a released state through the tightening mechanism 4. When the module end plate is installed in the battery pack, the module end plate is in a restrained state, which is convenient for inserting into the gap between the battery module and the shell. After the module end plate is inserted, the restraint can be released and the released state can be changed. The end plate is pushed away from the plate 2 and the end plate main board 1 by the elastic pushing mechanism 3, so that the module end plate can support the battery module and the shell, and can absorb or offset the deformation of the battery module during the use of the battery module. At the same time, it can also absorb external mechanical shocks to provide certain protection for the battery module.

[0041] Based on the above overall introduction, an exemplary structure of the module end plate of this embodiment is as follows: Figures 1 to 3 As shown in the figure, there are multiple elastic pushing mechanisms 3 arranged at intervals, and each elastic pushing mechanism 3 can be constrained in a compressed state by the corresponding tightening mechanism 4, and can ensure sufficient elastic force when released. The structure is simple and is conducive to design implementation.

[0042] As a preferred implementation form, Figure 3 As shown, multiple elastic pushing mechanisms 3 are arranged in multiple rows at intervals, and each row of elastic pushing mechanisms 3 shares a tightening mechanism 4, which is beneficial to reducing the process steps when making the module end plate and reducing the process steps when installing it, and is beneficial to quickly release the module end plate after installation, which is beneficial to improving work efficiency.

[0043] During specific implementation, the number and arrangement of the elastic pushing mechanisms 3 are set and adjusted according to the actual elastic force requirements. For example, they can be specifically set to three rows arranged at intervals, each row including six rows arranged at intervals. Of course, the number and arrangement of the elastic pushing mechanisms 3 can also be two rows, four rows, five rows or six rows arranged at intervals, etc., and the number of arrangements in each row can be two, three, four, five, seven or eight, etc., as long as it is ensured that sufficient elastic force can be provided.

[0044] In specific implementation, as a preferred improved form, a receiving groove 5 is provided on one of the end plate main board 1 or the end plate sub-board 2. In the present embodiment, the receiving groove 5 is arranged on the end plate main board 1, and the elastic pushing mechanism 3 is arranged in the receiving groove 5. The receiving groove 5 can limit the elastic pushing mechanism 3 and can indicate the installation position of the elastic pushing mechanism 3, which is beneficial to processing and production.

[0045] It can be understood that the shape of the receiving groove 5 can be a rectangle, a square, a rounded rectangle or an ellipse, etc., as long as it can accommodate the elastic pushing mechanism 3. In this embodiment, the receiving groove 5 is a rectangle, and a partition is provided in the receiving groove 5 to separate the elastic pushing mechanism 3 located in the same receiving groove 5.

[0046] like Figure 3 and Figure 4 As shown, a guide groove 6 is provided on the other side of the end plate main plate 1 and the end plate slave plate 2. In this embodiment, the guide groove 6 is arranged on the end plate slave plate 2. The guide groove 6 is arranged corresponding to the receiving groove 5. After the restraint of the tightening mechanism 4 is released, the elastic pushing mechanism 3 can enter the guide groove 6, and cooperate with the receiving groove 5 through the guide groove 6, so that the applied elastic force is in the set direction, thereby ensuring the use effect of the end plate, and can be used as a limiting structure during production and manufacturing, which is conducive to design implementation.

[0047] In addition, as a preferred embodiment, Figure 5 As shown, the elastic pushing mechanism 3 includes a spring 301 and a pad 302 located at one end of the spring 301. The number of pads 302 and springs 301 may not correspond. The number and arrangement of pads 302 and springs 301 are set and adjusted according to actual elastic force requirements. For example, it can be specifically set so that one spring 301 corresponds to one pad 302, or two springs 301 correspond to one pad 302, or three springs 301 correspond to one pad 302, etc. It is only necessary to ensure that the same end of the spring 301 is provided with a pad 302.

[0048] Specifically, the tightening mechanism 4 compresses the spring 301 through the pad 302, and the elastic force of the spring 301 is applied to the end plate main board 1 or the end plate slave plate 2 through the pad 302. The pad 302 facilitates the tightening mechanism 4 to compress the spring 301, and facilitates the elastic force of the spring 301 to be applied to the end plate main board 1 or the end plate slave plate 5 when it is released.

[0049] Furthermore, as a preferred implementation form, the tightening mechanism 4 includes a tightening wire. In a specific implementation, the tightening wire can be a metal wire, a rubber wire, a plastic wire, etc.

[0050] In the restrained state, the tightening wire is pressed against the pad 302, and the two ends of the tightening wire are fixed on the end plate main board 1 or the end plate sub-board 2 where the tightening mechanism 4 is set. The tightening wire can ensure the fixing effect of the pad 302 and is easy to break, which is conducive to releasing the restraint.

[0051] Correspondingly, the end plate main board 1 or the end plate slave board 2 is provided with a fixing foot 101 for fixing the tightening wire. In the present embodiment, the fixing foot 101 is arranged on the end plate main board 1.

[0052] As a preferred implementation form, Figure 5 As shown, a groove 303 is provided on the cushion block 302, and the tightening wire is located in the groove 303, which is beneficial to reducing the space occupied by the tightening wire, reasonably allocating the space, and facilitating the design implementation.

[0053] It also includes a removable restraint belt. In a specific implementation, the restraint belt can be an adhesive tape or a rubber ring, etc. When the elastic pushing mechanism 3 is constrained in a compressed state, the restraint belt connects the buckled end plate main board 1 and the end plate from the plate 2 together. The removable restraint belt facilitates the transportation, storage and use of the module end plate, thereby improving its convenience and practicality.

[0054] Specifically, as a preferred implementation form, Figures 1 to 3 As shown, the elastic pushing mechanism 3 and the tightening mechanism 4 are arranged together on the end plate main board 1, and the end plate main board 1 is provided with a fixing ear 102 for fixing the end plate main board 1 in the battery pack. The fixing ear 102 on the end plate main board 1 is conducive to fixing the module end plate in the battery pack, which is convenient for installation, and the elastic pushing mechanism 3 and the tightening mechanism 4 are both arranged on the end plate main board 1, which is conducive to ensuring that the release direction of the elastic force is to push the end plate from the plate 2 to the direction away from the end plate main board 1, which is conducive to design implementation.

[0055] When in use, first fix the end plate main board 1 and the end plate slave board 2 into one by the restraining belt and the tightening mechanism 4. At this time, the end plate module is in a restrained state. Then insert the end plate module into the gap between the battery module and the shell, install the end plate main board 1 on the shell through the fixing ear 102, use a tool to cut the restraining belt and the tightening wire, and the compressed spring 301 will unfold. The elastic force generated will push the end plate slave board 2 away from the end plate main board 1. At this time, it is in a released state. When the end plate module is in a released state, the expansion deformation generated by the battery module can be absorbed by squeezing the end plate slave board 2, and when the battery is subjected to mechanical shock, the spring 301 between the end plate main board 1 and the end plate slave board 2 can also absorb a certain amount of mechanical shock.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A module end plate, characterized in that: It includes an end plate main plate, an end plate slave plate, an elastic pushing mechanism and a tightening mechanism; The end plate main plate and the end plate slave plate are buckled together and can slide relatively along the buckling direction of the two; The elastic pushing mechanism is located between the end plate main plate and the end plate slave plate, and is arranged on the end plate main plate or the end plate slave plate together with the tightening mechanism, and the tightening mechanism can be in a restrained state or a released state of being untied; In the restrained state, the elastic pushing mechanism is restrained in a compressed state by the tightening mechanism, and in the released state, the restraint of the tightening mechanism is released, and the elastic pushing mechanism can form an elastic force between the end plate main plate and the end plate slave plate to drive the two away from each other.

2. The module end plate according to claim 1, characterized in that: The elastic pushing mechanisms are multiple and arranged at intervals, and each of the elastic pushing mechanisms can be constrained by the corresponding tightening mechanism to be in the compressed state.

3. The module end plate according to claim 2, characterized in that: The plurality of elastic pushing mechanisms are arranged in a plurality of rows at intervals, and each row of the elastic pushing mechanisms shares one tightening mechanism.

4. The module end plate according to claim 1, characterized in that: A receiving groove is provided on one of the end plate main plate or the end plate slave plate, and the elastic pushing mechanism is arranged in the receiving groove.

5. The module end plate according to claim 4, characterized in that: The end plate main board and the end plate slave board are both provided with guide grooves, and the guide grooves are arranged corresponding to the accommodating grooves. After the restraint of the tightening mechanism is released, the elastic pushing mechanism can enter the guide grooves.

6. The module end plate according to claim 1, characterized in that: The elastic pushing mechanism includes a spring and a pad located at one end of the spring; The tightening mechanism compresses the spring through the spacer, and the elastic force of the spring is applied to the end plate main plate or the end plate slave plate through the spacer.

7. The module end plate according to claim 6, characterized in that: The tightening mechanism comprises a tightening wire; In the restrained state, the tightening wire is pressed against the cushion block, and both ends of the tightening wire are fixed to the end plate main plate or the end plate slave plate.

8. The module end plate according to claim 7, characterized in that: The cushion block is provided with a groove, and the tightening wire is located in the groove.

9. The module end plate according to claim 1, characterized in that: It also includes a removable binding belt, which connects the buckled end plate main board and the end plate slave board together when the elastic pushing mechanism is bound in the compressed state.

10. The module end plate according to any one of claims 1 to 9, characterized in that: The elastic pushing mechanism and the tightening mechanism are arranged together on the end plate main board, and the end plate main board is provided with a fixing ear for fixing the end plate main board in the battery pack.

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